Telephone-signal.



E. H. OSBORN- TELEPHONE SIGNAL.

APPLICATION FILED MAR. 5. 1914.

Patented June 1, 1915.

2 SHEETS-SHEET I.

mama,

THE NORRIS PETERS CO4. PHoTO-L!THO.. WASHINGTON, D. C

E. H. OSBORN.

TELEPHONE SIGNAL.

APPLICATION FILED MAR. S. 1914.

1,141,823. Patented June 1, 1915.

2 SHEETS-SHEET 2.

88 uuuunnuunuuuuuuu 7 uuuuuuuuu THE NORRIS PETERS CO.. PHOTO-LITHO" WASHINGTON. D. C.

nLI'snA HAMLIN osBonN, or sAUK cnNrna, MINNESGTA.

rELErHoNn-sIe-NAL.

Specification of Letters Patent.

Patented June 1, 1915..

Application filed March 5, 1914. Serial No. 322,708.

To all whom it may concern Be it known that I, ELIsrrA HAMLIN Os- 7 BORN, a citizen of the United States, residing at Sauk Center, in the county of Stearns and State of Minnesota, have invented certain new anduseful Improvements in Telephone- Signals; and I do hereby declare the following to be a full, clear, and exact description of the invention,-such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in telephone signals and has for its principal object to provide a means to signal a plurality of independent telephones simultaneously.

Another object of this invention is to provide a device which is particularly adapted for country communities having volunteer fire corps to signal the inhabitants of the community in case of fire or similar accident.

A further object of the invention is to provide a device by means of which a number of telephones may be cut in simultaneously in order that a general message may be delivered, thereby eliminating the necessity of calling each person individually and repeating the announcement.

A further object of this invention is to provide a simple and effective device by means of which a general alarm may be given from'either the telephone operating switch-board, a night'watchmans switch, or any other desired point.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel featuresof construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which 7 V Figure 1 is aview of a device constructed in accordance with this invention, showing the interior mechanism of the invention, the same being partly in diagram to illustrate the method of wiring, Fig. 2 is a detail view of the contact for cutting in the telephone ringing circuit, and Fig. 3 is a detail view of one side of the magneto which is used for ringing purposes.

Referring in detail to the drawings by numerals, 1 designates a casing in which the several elements which are used in this inventlon are adapted to be contained. This casing 1 is provided with a bottom 2 and false bottom 3 upon which the magneto, des lgnated generally by the numeral 4, rests. A suitable shelf or similar support 5 is arranged within the casing and is so arranged as to support the battery 6 which is adapted to furnish power for the operation of the device. The magneto above referred to is preferably of the ordinary type and is provided at each end with the bearing members 7 and 8 in which the drive shafts 9 and 10 are journaled. The shaft 11 carrying the armature 12 of the magneto is also journaled in the support, as shown in Fig. 3, and one end of this shaft is provided with the spur gear '13, which is driven by the gear wheel 14 carried on the shaft 10 which in turn is driven by the spur gear 15 carried in the shaft '10. A gear wheel 16 is secured to the shaft 9 and meshes with the gear wheel 15 and is arranged to drive the same when the shaft 9 is rotated. A suitable winding drum 1? is secured to the end of the shaft 9 opposite the gear wheel 16 and is arranged to receive the flexible member 18 which winds on said drum, as clearly shown in Fig. 3. A suitable weight or similar driving device is secured to the free end of the flexible member 18 and is adapted to drive the shaft 9 when the device is set in operation. A suitable lug 20 is secured to the gear 16 and is arranged to engage the lug 21 which is carried on the free end of the lever 22. This lever 22 is pivoted to the frame, as at 23, and has formed integral therewith the angular extension 24, having in its free end the adjusting screw 25 carrying a contact point 26.

A suitable contact spring 27 is secured to the frame and each of these contact elements 25 and 27 is provided with the binding posts 28 and 29 respectively. A suitable adjustable supporting member 30 is slidable through the top of the casing, as shown in Fig. 1, and is provided with the thumb screw 31 by means of which the same may be adjusted vertically with relation to the casing. This member 30 is provided at its lower end with the slot 32 through which the bar 22 is adapted to extend. Thus it will be seen that the armature 33 carried by the bar 22 may be ad justed with relation to the core of the magnet 34 which will be more fully hereinafter described.

The magnet 34 above referred to is provided with the usual winding and has the core 35 extending centrally therethrough.

This core35-is arranged to comeindirect;

alinement with the armature 33 in; order that said armature may be drawn toward 7 wires 43 and 44: t

the core. when the magnet is energized.

pair jof bindingposts 36 and 37 are arranged to form connection with the magnets bymeans of which said magnets may be connected in" circuit with the battery 6 and each of which is pro switches 38 and 39', vided with the contactsAO and ll and the fixed arms A2, which are connected to the p o the binding post 45 of the battery 6. The opposite terminal of the battery is connected by means of the bind ing'post 46 to the wire 4:7. After the current haspassed through the magnet 34, the same will pass throughthe binding post 36 to the wire 48 and into the' wire 47 which will carry the same back to the binding post 46 of the battery 6, thereby completing the circuit through the magnet 34:.

The wire 47. coming from'the binding post 46 of thebattery 6, is extended,- as at scription proceeds.

51, and terminates at the-magnet 52 in the binding post 53. The opposite binding post 5% has connected thereto the wire 55'which is'connected, as at 56, to'the wire 57, the

terminalsjoit' which are connected to the contact 'pointAl. The magnet 52 is provided with the core cotiperate with the armatures 59 to'lift the lever 60'which is pivoted, as at -61, to the V frame 2 of the device. A rod 62 is pivotally secured to the lever, as clearly shown in Fig.1, andsaid rod is provided at its lower extremity with the screwthreads which are arranged to coeperate with theturnbuckle 63, the use of which will appear as thede- A suitable cam 64:is carried by the shaft 9 and is adapted torotate therewith. Said cam is arranged to engage the free end of the lever 60 to force the same upwardly when the magnet 52 is turn-buckle 68 is arranged to adjust the 7 after described.

' Connected to the binding 29-I provide the wires 69 and 0, the oppo-' 65 siteTtermiIIalofthe wire 69 is connectedto connections 66 and 67 with relation'to each other to insure. the proper contact of the bus bars, which will be more fully hereinnests 28 an 58 which is arranged tocarried by the magneto.

seen that when thelever 22 is drawn upwardby means of the magnet'34=, the contact'point' the-magneto by means of the binding post .71, while the terminal or the wire 70 opposite the binding post29 is connected, as

74, as clearly shown in the drawings. The

levers 7 3- are extended, as clearly shown in Fig. 1, and are provided with 'the connec- A plurality of bars 77' are spacedfrom each other, and are connected'to thetelephone switch-bo'ard 78 by means of thecable 7 9, which carries a plurality of connecting j 72, to the levers 7 3 carrying the bus bar.

tions by means ofwhich the connecting bar 7 6 is held in proper position. This QOI1- nectin bar 76 extends through the connection 6 and thereby pivotally' secures the levers73 to the bar 165.

wires'80 terminating in the, telephone fcir cuit carrying the cablesSl. v l p A second set of bars sim lar to the bars 7 7 are provided and are connected by means ing a telephone connection, as clearly shown in Fig. 1. A pair of levers are pivoted, as at 86', to the casing and have secured adba'rs-to throw the telephones in circuit when the device is operated. Each of'these" bars 85 is provided with the connection 88 which is arranged-to supportthe rod "89 passing through theconnection 66 which pivotally. v

secur'esthe bars 85 to the rod65.

A suitable wire 90 'is'c'on'nectedto; one-er the levers '85 and the opposite" terminal of of thecable 82by "means otthe wires 83 which are connectedto-the telephone switch-' board and terminate in the cables Setcarry jacent their-free ends the bus bar 87 which Y is arranged to" contact with the sec'on'dset of said wire is connected to the binding post 91 Thus it will be- 26' will engage thefcontact spring 27 and close thecircuit from'themagneto through? the wire 69, binding post-28, contact arm2l,fi

contact point 26, contact spring 27 to the- 1 bindingpost 29, from'which the current will pass through the wire 70' tothe lever 73,

and when 'the "lever' is forced upwardly against the bars 77, theb us-bar7fil will contact with the bars 77* and send'the current? throu'gh the several telephonelringing cir'- cuits backthrough the cable 84 to the switchboard78 and" cable 82 to the second set tr bars, thence back through the levers 85 to.

the wire 90'andbinding post 91', ifrornwhich l i the current enters the magneto.

It will be apparent from the foregoing.

that in use when Gamer the switches'38. I

or '39 is thrown to the contaotlO, the current will passthrough thewire A4 to the wire-4:3 i into the switch arm42 through the contact 40, wire 49 tothe' branchwire '50 and into the magnet 3t'through the binding post 37 After passing through the magnet, the current will pass through the bindingpostf36,

branch-wire 48 "to the wire A7 and again mitting the weight 19 to descend and set the shaft 9 in motion. Therotation of the shaft 9 will drive the gear wheel16 which in turn will turn the spur gear 15, driving the shaft 10 and causing the gear wheel 14 to revolve, which meshingwith the gear wheel 13 on the shaft 11 will drive the armature 12 of the magneto and thus generate the current in the magneto which is used to ring the bells of the telephones. Simultaneously with the revolution of the wheel 16 and shaft 9, the cam 64 will revolve and raise the end of the lever 60, thus pulling upwardly on the bar 62, turn-buckle 63 and bar 65, thereby raising the levers 7 3 and 85 and bringing the bus bars 74 and87 intoengagement with the bars 77 and the similar bars which are connected to the cable 82 which terminates in the telephone switchboards 78,thus closing the circuit through the telephones simultaneously and permitting the current which passes from the magneto through the binding post 7.1,.wire 69, binding post 28, contact arm 24, contact point 26, contact spring 27, and binding post v29 to pass through the wire 70 and into the cable-79 through the levers 73 and busbar 74, while the current passes back to the magneto through the cable 82, the bus bar- 87, levers 85 and wire 90 to the binding post 91 of the magneto. After the signal has been given, the switch arm 42 is'swung to the contact point 41 which will throw the circuit from the battery 6 through the binding post 45 to the wire 44 into the wire 43, through the contact arm 42, contact point 41 to the wire 57 and joint 56 into the branch wire from whence the current passes into the magnet 52 through the binding post 54. The circuit then passes from the magnet 52 into the binding post 53 through the wire 51 to the wire 47 and returns to the battery through the binding post 46. Thus it will be seen that the core 58 of the magnet will be energizedwhich will draw the armature 59 carried by the lever 60 upwardly and thereby throw in the telephone circuit and permitting the operator to make any announcement over the wires that A may be necessary.

In using this device it will be evident that the parties which it is desired to call, may be cut in o'nthe line somultaneously and a single announcement may be madeover the telephone which will be transmitted to all the phones in circuit, thus eliminating any necessity of repeating the announcement,

and thus avoiding considerable loss of time.

While I have shown and described the preferred embodiment of my invention, it

circuit simultaneously I 2. The combination with a plurality 'in circuit with one terminal of a telephone switchboard, a second set of bars connected incircuit with the opposite terminal of the telephone switchboard, a bar adapted to connect all of the bars in one set simultaneously,

a second bar adapted to connect all the bars in the second set simultaneously, a wire connecting one set of bars to the magneto, an automaticswitch, a wire connecting the switch to the other set of bars, a wire connecting the switch and magneto, an electromagnet, a lever, said lever controlling the automatic switch, an armature on said lever and adapted to be attracted by the electro-magnet, a train of gears to operate the magneto, means to control the flow of electricity through the electromagnet, and electrically controlled means to throw all the telephone circuits in of telephone circuits of a device of the character described, comprising a magneto, atrain of gears for operating said magneto, means to cause the gears to revolve, a cam carried by one of said gears, a power supply, an electromagnet in circuit with the power supply, a switch for controlling the operation of the electromagnet, a lever, a lug carried by one of said gears and adapted to engage the lever to hold the gear from rotation, a contact arm on the lever, a contact spring adapted to cooperate with the contact arm, a second electromagnet, a lever, the free end'of said lever being adapted to be engaged by the cam on the gear wheel so that said lever will be raised when the gear wheel is rotated, the second mentioned electromagnet being adapted to attract the lever V and also being in circuit with the power supply, means to control the energizing of the second mentioned electromagnet, and means controlled by the second mentioned lever to throw in the telephone circuits when either 7 of the switches are operated.

connected with the contact arm, contact springand magneto, tothr'ow in the telephone circuits, and means automatically and electrically operated to control the throwing in of the telephone circuits.

4c. The combination with a telephone switchboard carrying a plurality of telephone circuits, of a magneto, means in circuit with the magneto to throw in the tele phone circuits through the switchboard, a weight operated 'mechanism' to drive the magneto, electrically controlled means to automatically release the weight operated means and set the magneto in operation, an

l circuit, a camcarried by the magneto drivautomatic switch operated by the electrically controlled means to cut in the magneto ing mechanism, a lever controlled by the cam, an armature on the leverand adapted to be attracted by asecond eleetromagnet and means connecting the lever With the telephone circuit controlling means to cut in the telephones and give a signal vthereon.

I 5.'The combination with a plurality of telephone circuits of a device of the charac-i ter described, a magneto, a train of gears to set said magneto m operation, a stop carried by one of said gears, a cam carried by oneof said gears, a'lev er, an electromagnet,

Copiesof this patent maybe obtained for an armature vca riedby said lever, an extension-formed at thejfree end of the lever, said armature being adapted to be attracted by the electromagnet, a contact arm formed on the,1ever,a contact spring cooperatingwith the contact arm and adapted to be engaged 7 when the lever-is raised, a secondelectro magnet, a second lever, the free'end of the second mentioned lever being adapted to be engaged by the cam on the magneto oper-l vating mechanism, an armature on the second 40 p'lete a circui tthroughflthe cutting in means to the telephones andthereby ring thebells on e'achof the telephones; p --In testimony whereof I affix my signature in presence of two'witnesse's. r V

Witnesses! AKFFSTELDQ p D B. CAUGHOEQ f ELISHA n MLINosBoRN. it

five cents each, by addressing the flommissionerzof'iatents, V Wasliingtonflld r r I i 1 

